4 layers99.6 × 76.2 mm
2 layers28.7 × 35.6 mm
IOX Darlington
plocher/IOX-Darlington- Size
- 28.7 × 35.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 6
- Nets
- 18
- Pads
- 36
- Tracks, vias
- 59, 0
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 2 Sep 2026
- Updated
- 2 Sep 2026
Overview
IOX Darlington is an open-source printed circuit board by plocher, from the plocher/IOX-Darlington repository on GitHub. It is a 2-layer board of 28.7 × 35.6 mm with 6 parts on 18 nets, routed with 59 tracks and 0 vias.
It is built around the ULN2003. Its parts include 4 connectors and 1 IC.
Main components
1Parts
6| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | Conn_01x08 | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J2, J3 |
| 1 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | Conn_01x02 | Connector_Phoenix_MSTB:PhoenixContact_MSTBA_2,5_2-G-5,08_1x02_P5.08mm_Horizontal | J4 |
| 1 | ULN2003 | Package_DIP:DIP-16_W7.62mm_Socket | U1 |
| 1 | ~ | SPCoast:SILK_Logo-MRCS | MRCS1 |
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Questions
How big is the IOX Darlington PCB?
It measures 28.7 × 35.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the IOX Darlington use?
6 parts, built around the ULN2003. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the IOX Darlington KiCad files?
From the plocher/IOX-Darlington repository on GitHub, at the commit this page was made from: the board is IOX-Darlington.kicad_pcb and its schematic IOX-Darlington.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the IOX Darlington design in my own project?
Its repository states no licence, so its author keeps all rights: ask plocher before reusing the design.